import router, { constantRoutes } from "@/router";
import { isHttp } from "@/utils/validate";
import { getRouters } from "@/api/menu";
import Layout from "@/layout/index";
import ParentView from "@/components/ParentView";
import InnerLink from "@/layout/components/InnerLink";
import { getloginToken } from "@/api/login";
// 匹配views里面所有的.vue文件
const modules = import.meta.glob("./../../views/**/*.vue");

const usePermissionStore = defineStore('permission', {
  state: () => ({
    menus: [], // 菜单
    routes: [],
    addRoutes: [],
    defaultRoutes: [],
    topbarRouters: [],
    sidebarRouters: []
  }),
  actions: {
    setRoutes(routes) {
      this.addRoutes = routes
      this.routes = constantRoutes.concat(routes)
    },
    setDefaultRoutes(routes) {
      this.defaultRoutes = constantRoutes.concat(routes)
    },
    setTopbarRoutes(routes) {
      this.topbarRouters = routes
    },
    setSidebarRouters(routes) {
      this.sidebarRouters = constantRoutes.concat(routes)
    },
    generateRoutes(userId) {
      return new Promise((resolve, reject) => {
        // 向后端请求路由数据
        getRouters(userId).then(res => {
          if (res && res.data) {
            // 菜单转路由
            this.menuToRoutes(res.data);
            resolve(this.routes);
          } else {
            reject(res);
          }
        }).catch(err => {
          reject(err);
        })
      })
    },
    // 菜单转路由
    menuToRoutes: function (menus) {
      // 菜单
      this.menus = JSON.parse(JSON.stringify(menus));
      // 根据菜单，生成路由
      const sdata = JSON.parse(JSON.stringify(menus));
      const rdata = JSON.parse(JSON.stringify(menus));
      const defaultData = JSON.parse(JSON.stringify(menus));
      let sidebarRoutes = filterAsyncRouter(sdata);
      const rewriteRoutes = filterAsyncRouter(rdata, false, true);
      const defaultRoutes = filterAsyncRouter(defaultData);
      this.setRoutes(rewriteRoutes);
      this.setSidebarRouters(sidebarRoutes);
      this.setDefaultRoutes(defaultRoutes);
      this.setTopbarRoutes(defaultRoutes);
      // 动态添加路由到路由表中
      addRoutes(rewriteRoutes);
    }
  }
})

// 遍历后台传来的路由字符串，转换为组件对象
function filterAsyncRouter(asyncRouterMap, lastRouter = false, type = false) {
  return asyncRouterMap.filter((route) => {
    if (type && route.children) {
      route.children = filterChildren(route.children);
    }
    if (route.component) {
      // Layout ParentView 组件特殊处理
      if (route.component === "Layout") {
        route.component = Layout;
      } else if (route.component === "ParentView") {
        route.component = ParentView;
      } else if (route.component === "InnerLink") {
        route.component = InnerLink;
      } else {
        route.component = loadView(route.component);
      }
    }
    if (route.children != null && route.children && route.children.length) {
      route.children = filterAsyncRouter(route.children, route, type);
    } else {
      delete route["children"];
      delete route["redirect"];
    }
    return true;
  });
}
// 递归遍历子路由
function filterChildren(childrenMap, lastRouter = false) {
  var children = [];
  childrenMap.forEach((el, index) => {
    if (el.children && el.children.length) {
      if (el.component === "ParentView" && !lastRouter) {
        el.children.forEach((c) => {
          c.path = el.path + "/" + c.path;
          if (c.children && c.children.length) {
            children = children.concat(filterChildren(c.children, c));
            return;
          }
          children.push(c);
        });
        return;
      }
    }
    if (lastRouter) {
      el.path = lastRouter.path + "/" + el.path;
    }
    children = children.concat(el);
  });
  return children;
}
// 动态添加路由到路由表中
function addRoutes(routes) {
  if (routes && routes.length) {
    // 根据roles权限生成可访问的路由表
    routes.forEach((route) => {
      if (!isHttp(route.path)) {
        const arrRoutes = [];
        router.getRoutes().map(item => { if (item.name) arrRoutes.push(item.name); });
        if (arrRoutes.includes(route.name) && route.children && route.children.length) {
          route.children.map(cur => {
            router.addRoute(route.name, cur);
          })
        } else {
          router.addRoute(route); // 动态添加可访问路由表
        }
      }
    });
  }
}
// 根据路径加载vue文件
export const loadView = (view) => {
  let res;
  for (const path in modules) {
    const dir = path.split("views/")[1].split(".vue")[0];
    if (dir === view) {
      res = () => modules[path]();
    }
  }
  return res;
};

export default usePermissionStore;
